A sling or runner is an item of

climbing equipment A wide range of equipment is used during rock or any other type of climbing that includes equipment commonly used to protect a climber against the consequences of a fall. Rope, cord and webbing Climbing ropes are typically of kernmantle c ...

consisting of a tied or sewn loop of

webbing red, blue and black auto_racing.html"_;"title="nylon_webbing_as_used_in_auto_racing">nylon_webbing_as_used_in_auto_racing_harnesses Webbing_is_a_strong_nylon_webbing_as_used_in_auto_racing_harnesses">auto_racing.html"_;"title="nylon_webbing_as ...

. These can be wrapped around sections of rock, hitched to other pieces of equipment, or tied directly to a tensioned line using a

Prusik A Prusik ( ) is a friction hitch or knot used to attach a loop of cord around a rope, applied in climbing, canyoneering, mountaineering, caving, rope rescue, ziplining, and by arborists. The term Prusik is a name for both the loops of cord used ...

style knot. They may be used as anchors, to extend an anchor to reduce

rope drag A rope is a group of yarns, plies, fibres, or strands that are twisted or braided together into a larger and stronger form. Ropes have tensile strength and so can be used for dragging and lifting. Rope is thicker and stronger than similarly c ...

, in anchor equalization, or to climb a rope.

Types

Slings come both sewn to length and assembled from loose webbing knotted as desired. Common sewn lengths include , , , and . They are available in widths of . Webbing for slings, also known as ''tape'', is sold off the reel, cut to length with a hot knife to prevent fraying, and tied as desired with a

water knot The water knot (also tape knot, ring bend, grass knot, or overhand follow-through) is a knot frequently used in climbing for joining two ends of webbing together, for instance when making a sling. Tying It is tied by forming an overhand knot in ...

. Sewn slings have a rated breaking strength of at least . Short sewn slings are a component of

quickdraw A quickdraw (also known as an extender) is a piece of climbing equipment used by rock and ice climbers to allow the climbing rope to run freely through protection such as a bolt anchors or other traditional gear while leading. A quickdraw ...

s, sometimes known as ''dogbones''. Traditionally, slings have been made of

nylon Nylon is a generic designation for a family of synthetic polymers composed of polyamides ( repeating units linked by amide links).The polyamides may be aliphatic or semi-aromatic. Nylon is a silk-like thermoplastic, generally made from petro ...

. Increasingly,

ultra high molecular weight polyethylene Ultra-high-molecular-weight polyethylene (UHMWPE, UHMW) is a subset of the thermoplastic polyethylene. Also known as high-modulus polyethylene, (HMPE), it has extremely long chains, with a molecular mass usually between 3.5 and 7.5 million amu. T ...

sold under the brand names Dyneema, Dynex and Spectra is used. These have much lower melting points than nylon, making them a potentially poor choice where high rope friction may occur. However this specialty polyethylene is lighter, smaller, and absorbs less water than nylon, and therefore has become popular.

Gear sling

A gear sling is a loop of webbing used to organize or carry equipment. These can be custom items meant only to carry light gear, fully load-bearing manufactured gear racks capable of doubling for a sling, or simply a regular sling used to rack gear.

References

External links

Ledtex Webbing
{{Climbing-nav Climbing equipment Mountaineering equipment

Types

Gear sling

See also

References

External links